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Webhooks are a HTTP Post request made to your application endpoint when an interesting event happens at SendPost. This includes events such as email opens, clicks, hard bounce, spam, unsubscribe and more. You may want to consume webhook events if you want to replicate state of your email recipients to your internal system ( have they unsubcribed or has their email bounced ?) or you want to build custom analytics for internal product consumption. Other use-cases where consuming webhook may be relevant is when you are building an application on top of SendPost such as an email marketing software and you want to show emails delivered, opened, clicked etc. to your customers.

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Testing Webhooks

Generally configuring a webhook is pretty cumbersome process for developers. At SendPost we have tried to make it a bit simpler:
  • Webhook Single-Click Test
You can go to SendPost dashboard and click on button to test individual webhook. This will trigger a test Webhook API call of the specific event such as email open, click etc.
  • Request Bin
RequestBin is a great service to inspect HTTP requests. You can create a temporary RequestBin URL and use the temporary URL as your webhook URL in SendPost. After that you can trigger webhook calls either using curl or through our Webhook Single-Click Test. RequestBin will then record the HTTP requests and allow you to inspect the HTTP requests to verify headers, JSON body, and other information about the webhook request. This will provide you with information about the HTTP requests used in the webhook if you don’t have a public URL set up yet and want to start developing right away.